Software RAID grub boot error on new xubuntu installation
Hi, I was reloading my linux box from scratch recently and decided to try software RAID 0 since I have two identical 75GB drives and figured this would provide a nice boost in read/write speeds. So, during the install I noticed an option to do software RAID and choose that route. I told the software to RAID 0 my two drives. Everything went fine with the install but as soon as I rebooted I'm getting this error.
error: failure reading sector 0xb30 from 'fd0' error: disk 'mduuid/LONG#,1' not found. I tried messing with some of the hard drive settings in BIOS but I can't get past this error. Any ideas how I might be able to fix this in grub or do I have to backout of software RAID 0? I recall the Guided Partitioning did the following after setting up my software RAID0. RAID 0 159 GB Auto partition suggestion> #1 Primary 159.4 GB ext4 #5 logical 534.6 MB swap SCSI1 80G K RAID and SCSI2 80G K RAID I was really excited with the idea of doing software RAID so I'm hoping to get this fixed without reloading and going back to non-RAID. Thanks for any suggestions or ideas. I'm hoping this might complete what's need to possibly fix my issue. Exact Error> error: failure reading sector 0xb30 from 'fd0' error: disk 'mduuid/bbcb78f0:0c354275:884cd2c7:3039c061' not found. Entering rescue mode... grub rescue> _ Also I have a floppy since I'm pretty sure fd0 is the floppy so not sure what I get that error? This is the specific drive or UUID I get the error on and it's my RAID0 id per mdadm -D /dev/md0 output. UUID : bbcb78f0:0c354275:884cd2c7:3039c061 Here's some disk output I've gathered. Code:
root@sysresccd /root % fdisk -l Code:
root@sysresccd /root % blkid error reading sector 0xb30 from 'fd0' and /dev/sda does not have any corresponding BIOS drive I came across a couple post. I'm currently booted up with a rescue CD and trying to see how I can reinstall grub. It seems like it should be on /dev/sda1 not /dev/sdb2 as it shows above. I was thinking if I could somehow get to /etc/fstab I could remove or modify the fd0 parameter. I was trying to follow this post but running into issues. http://idolinux.blogspot.com/2009/07...er-on-md0.html I can't seem to get the grub to load and my linux skills are way rusty right now. Appreciate any help! |
The partitioning is not very reasonable.
/boot swap /(root) /home /var /tmp You should not use RAID 0, since one drive is defective, you loose your data. |
Code:
error: failure reading sector 0xb30 from 'fd0' Edit: Check out this bug: https://bugzilla.redhat.com/show_bug.cgi?id=753643 |
I would say the floppy message is a red herring - the following message is likely the issue. Let's see the /boot/grub/grub.cfg (I think that's what Ubuntu name it).
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Thanks for the replies. However, I'm going to try a reload tonight with floppy drive disabled.
Thought the boot-repair-disk utility fixed it but turns out I still have "issues". boot-repair-utility output stating it fixed my GRUB after purging and reloading. http://paste.ubuntu.com/23504650/ |
FYI, I ended up trying the Software RAID 0 setup again with the floppy disabled in BIOS. This time it gave me a different error and GRUB couldn't find the OS in the RAID partition. I tried running boot-repair-disk again and it purged GRUB and re-installed and said repaired successfully but it still didn't boot right and gave some GRUB mda error or something. Either way, I went back in with my recovery OS boot disk and created my partitions from scratch for / , /home & swap. Then, I booted up with X-ubuntu mini-CD and then I finally got it to load normally. Kind of a hassle for such a simple single OS boot system!
This is my old trusty PIII 600 with minimum RAM and a CD-ROM. So, I was pretty limited on my install media since I can't even boot from USB with this system. Hard to find ISO's that are under CD-ROM size nowadays! Either way, I'm glad to have my linux box back up and ready to start customizing! |
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